How to write name of the file's owner to the file using c#?

Question

Below is the code how to get the name of the file's owner:

using System.Security.AccessControl;
using System.Security.Principal;
using System.IO;

//...

FileInfo fileInfo = new FileInfo(@"1.txt");
FileSecurity fileSecurity = fileInfo.GetAccessControl();
IdentityReference identityReference = fileSecurity.GetOwner(typeof(NTAccount));
MessageBox.Show(identityReference.Value);

Is it possible to write this data to the file using c#?

you want to write this data as plain text at the end of file? — teo van kot, Dec 08 '14 at 18:01
@teovankot No, I want to write it to the window "Properties" of the file — Amazing User, Dec 08 '14 at 18:03
Maby this will help? http://stackoverflow.com/a/153146/1849444 — teo van kot, Dec 08 '14 at 18:08

score 0 · Accepted Answer · edited May 23 '17 at 10:25

From this question

File.Copy(@"1.txt", @"2.txt", true);
string userName = System.IO.File.GetAccessControl(@"1.txt").GetOwner(typeof(System.Security.Principal.NTAccount)).ToString();
var fs = File.GetAccessControl(@"2.txt");
var ntAccount = new NTAccount("DOMAIN", userName);
fs.SetOWner(ntAccount);

try {
   File.SetAccessControl(@"2.txt", fs);
} catch (InvalidOperationException ex) {
   Console.WriteLine("You cannot assign ownership to that user." +
    "Either you don't have TakeOwnership permissions, or it is not your user account."
   );
   throw;
}

How to write name of the file's owner to the file using c#?

1 Answers1